((3-Acylamino-2-oxo-1-azetidinyl)oxy)methyl)phosphinic acids
(1R,5S,6S)-2-[(6,7-dih ydro-5H-pyrazolo[1,2-a][1,2,4]triazolium-
(1R,5S,6S)-2-[(6,7-dihydr o-5H-pyrazolo[1,2-a][1,2,4]triazolium-
(2,5-dihydro 5-phenyl-2-oxo-3-furanyl)amines, methods of manufac
(3,4,7,8,9,10-hexahydro-6, 10 -6H-pyridazino...
(3,4,7,8,9,10-hexahydro-6,10-dioxo-6H...
(3S, 4R)-3,4-trans-disubstituted azetidin-2-one intermediates
(6,7)-substituted-8-alkoxy-1-cyclopropyl-1,4-dihydro -4-oxo-3-qu